From Lukasz
To all the users of DHT series DACs: (Lite 7, Big7, Siebener, Golden Gate)
The 242 Tube as such is “compatible” with the circuit and will not damage the DAC and the DAC will not damage the tube.
This concerns all DACs without tube-type toggle switch, and those that have it - in the 101D, 45 position not the 300B or 2A3 position.
HOWEVER the tube 242 is significantly louder than others (also more subjectively dynamic sounding) which may cause:
1. In amplifiers that have analog passive volume control - will require turning them down by two hours
2. Amps having digital or transistor active or opamp active or chip active volume control - may cause saturation and clipping
3. In DACS equipped with volume control will require turning the volume down by 10 dB.
4. Passsive attenuators, transformer volume controls, resistor ladd
ers etc - will just love the increased signals.
If we did not fit the DAC with this tube originally - you are experimenting on your own and don’t be mad at us if you don’t like the result.
Best regards,
LampizatOr Team